Pharmaceutical still



J. BERRY. PHARMACEUTICAL STILL.

Patented Mar. s, 1885.

N. PUERS. Pnnw-Lilhegmphnn washington. D, C.

(No Model.)

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ll'nirnb dramas,

Param Ormea.

JOHN BERRY, OF BIDDEFORD, MAINE.

PHRMACEui-lCALsTlLL.'

SPECIFICATION forming part of Letters Patent No. 313,163, dated March 3, 1885.

A pplication tiled May To allzu/wm it may concern,.-

Be it known that l. JOHN BERRY, of Biddeford, in the county of York and State of Maine, have invented a new and useful Improvement in Pharmaceutical Stills; and I do hereby declare that the following is a full, clear, and eX- act description of the same.

'My invention relates to pharmaceutical stills, the general object of which is greater simplicity and compactness and rapidity in the operation, all ot'which is set forth fully hereinafter.

In the accompanying drawing, the figure represents a central vertical section ofthe apparatus. In this ligure the boiler in which the liquid is evaporated is at d. It may be made rounded or in any convenient form or of any convenient size. The heat may be applied to it by a spirit-lamp or by any well-known or suitable apparatus. A threaded pipe-extension (shown at L) serves to connect the condenser to the boiler, the lower part of the condenser being fitted for union for the threaded extension L. The condenser consists ot' the condensing-ch amber O of the outer jacket, O, there being between the chamber C and the jacket a space or chamber, H, which Very nearly surrounds the entire condensing-cham Tater or other cool liquid is admitted from a suitable head into a chamber, H, through a pipe, F, and escapes through the pipe K. A nozzle, M, connects the interior of the boiler with the interior ofthe condensing-chamber. Thispipe is surrounded within the condensing'chamber by a jacket, l l, and outside of the condensing-chamber, and between it and the outer or main jacket, O, by a jacket, 2 2, these jackets l and 2 forming small annular chambers a. These protect the tube M from the effect of the cold water in chamber H and cold air in chamber C, and pre vent the vapor from condensing in said tube and ruiming back to the boiler. The dis`r charge-pipe 7L extends from the bottom D of the condensingchamber through the cham- 9, 1884. (No model.)

ber H, and communicates with the pipe leading to the'receivingvessel E. As the pipe h passes through the chamber in which the cold water circulates,the condensed liquid is cooled while on its way to the receiving-vessel. The vapor as it condenses within the chamber C falls to the bottom of chamber C and escapes through the pipe, as described, and none of it can run back into the boiler by reason of the construction of the protecting-chambers a c and the nearness of the whole condensing apparatus to the boiler. I provide in the top of the boiler a thermometer, I). rIhis I set within a plug which is adapted to the fillingorilice. The bulb ofthethermometer projects within the upper part of the. boiler-space above the line of the liquid.

The apparatus may be made of any desired size without affecting its operation.

The general construction renders the apparatus exceedingly compact and convenient in addition to the advantages heretofore en umerated.

I claim as my inventionl. A boiler, d, provided with au extension, L, connected directly to the bottoni ofthe condensing apparatus, in combination with the tube M, surrounded by jackets l 2, and opening int-o the interior ol the condensing-Chaniber, substantially as described.

2. The boiler d, provided with the threaded extension L, and the pipel M, combined with the condensing-chamber C and jacket O and jackets 1 and 2. substantially as described.

3. The combination, with the chambers O and jackets O, oi' tube M, jackets l 2, and the pipe IL, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two sub` scribing witnesses.

J OHN BERRY.

Witnesses:

WILLIAM MORAN, EDWARD L. Cowan. 

